How to add or subtract two columns and put the results in a new column in a Pandas Dataframe - Quora
![pandas - Insert new rows in a dataframe column equal to the number in a given row and fill it with 1's in python - Stack Overflow pandas - Insert new rows in a dataframe column equal to the number in a given row and fill it with 1's in python - Stack Overflow](https://i.stack.imgur.com/cZcwJ.png)
pandas - Insert new rows in a dataframe column equal to the number in a given row and fill it with 1's in python - Stack Overflow
![Kevin Markham on X: "🐼🤹♂️ pandas trick #90: Want to insert a new column into a DataFrame at a specific location? Use the "insert" method: df.insert(location, name, value) See example 👇 P.S. Kevin Markham on X: "🐼🤹♂️ pandas trick #90: Want to insert a new column into a DataFrame at a specific location? Use the "insert" method: df.insert(location, name, value) See example 👇 P.S.](https://pbs.twimg.com/media/EJ5wM3UWsAAkMjs.jpg:large)
Kevin Markham on X: "🐼🤹♂️ pandas trick #90: Want to insert a new column into a DataFrame at a specific location? Use the "insert" method: df.insert(location, name, value) See example 👇 P.S.
![python - pandas dataframe - add new row if new index, if existing then supplement the index with column data - Stack Overflow python - pandas dataframe - add new row if new index, if existing then supplement the index with column data - Stack Overflow](https://i.stack.imgur.com/8QVqN.png)